Hi I am 53, have just done ( 3 days ago) my second cataract surgery to my left eye. The right eye was done about a week earlier. currently the results are : Right eye : -2.25 D Left eye : -1.5 D My dominant eye is the right eye. Its very comfortable to read with my right dominant eye - i am not feeling the blur in the second eye. However, when reading the comp or looking more distant, using my non dominant eye, especially at low light condition, I do see the blur from my right eye. Is it just a matter of time to adapt to this ?
My eyes are quite different for both intermediate and near. I was quite worried about it initially, but have gotten used to it. I'm not an expert, but I think it's tough to expect to make both eyes the same for all distances using surgical methods. We can't expect luxury of results achieved by simply popping different lenses into the frames of glasses where it seems to be a simple exercise.
My thoughts would be that you should adapt to switching between reading close and intermediate. It may take a bit of time. However, for distance I would think eyeglasses would be essential. A more typical monovision would be to have the distance eye at -0.25, and the near eye at -1.25 to -1.5.
I appreciate the time you took to respond. The question is about the ability to train the non dominant eye to "take over" for intermediate range.
Thanks a lot for your input :-)
Some make the claim that you can train your eyes. A few years ago I tried monovision with contacts, and I adapted to it reasonably well, without any specific training activities. However, here is a video you may want to search for in youtube and consider. . How to get the best from Monovision Wellingtoneyeclinic
Watched it - really interesting .
Hello. I am writing from Montreal , Canada. I am 74 years and was told by my doctor that I may be a good candidate for monovision.
I was advised to get fitted with contact lens to test my ability, but have not done so as yet. I am supposed to get my operation starting in August for the first eye and September for the second. (All put on hold due to the ongoing issues with the C virus).
I am anxious to learn why I am a "good candidate". My last prescription reads as follows: DIST_Right eye: Sphere -3.25 Cyl: -1.75 Axe 95 DIST_Left eye : Sphere: -.25 Cyl: - 1.50 Axe 65
ADD Right eye:2.50SEG 23 ADD Left eye: 2.5 SEG 23
1.Are you able to tell me what is my Dioptre from this information? 2.Does this information reveal why I am supposed to be a "good candidate"? 3.If not, what determines if I am a "good candidate" or not? 4.Are you satisfied with your selection of monovision, and may I ask why? 5.Are you now totally free of spectacles?
Any information you ( or any reader on this forum) can provide me would be greatly appreciated, as I still have plenty of time before making a firm choice.
Many thanks! I appreciate any and all comments.
wow, what state do you live in? I'm from NYC and they stopped such surgeries march 16!! I just made it in time on march 12 to get my 2nd eye done. at that time there were only 2 positive corona at that hospital. And I knew things would get worse each hour!!
wow, what state do you live in? I'm from NYC and they stopped such surgeries march 16!! I just made it in time on march 12 to get my 2nd eye done. at that time there were only 2 positive corona at that hospital. And I knew things would get worse each hour!!
I am from Israel and here they also stopped doing them. I managed to get it done before they did.
In my case it was done deliberately to enable better range.
I am not an expert and don't want to mislead you. I guess the "good candidate" has something to do with the big difference you have between your eyes. But i suggest consulting a specialist.
Hi Roni...I had my cataract surgeries in March and April of 2019. My left dominant eye was corrected for distance and my right eye for intermediate range. Although I have good vision in both eyes, when using my intermediate vision, I still to this day have the blur from my distant eye. Its like my dominant eye does not allow the other eye to fully take over. I don't experience this blur when using distance vision. I was hoping my brain would adapt and this would resolve with time but, after a year, I don't think that's likely to happen. It's not disabling at all but it is annoying. I hope, with time, your blur will resolve.
Hi cazms Thanks that's an important input. Whats the Dioptr difference in your case ?
After surgery, my left eye was close to plano and my right eye was 1.25. After a year, my distance vision does not seem quite as sharp but is still good. I forgot to mention previously that I believe some of the blur I sense in my left eye is due to floaters.
I believe that the purpose of this forum is to help one another to understand the issue of their eyesight.
And yes, I understand you are not an expert. But are you not able to give me some commentary on points 1, 4, and 5?
I have already seen my eye specialist and will see her again when the commotion lifts over the coronavirus.
The purpose of my post is simply to gather enough information to enable me to speak to her intelligently when we next meet .
Thank you.
I am anxious to learn why I am a "good candidate". My last prescription reads as follows:
DIST_Right eye: Sphere -3.25 Cyl: -1.75 Axe 95
DIST_Left eye : Sphere: -.25 Cyl: - 1.50 Axe 65
ADD Right eye:2.50 SEG 23
ADD Left eye: 2.5 SEG 23
1.Are you able to tell me what is my Dioptre from this information?
2.Does this information reveal why I am supposed to be a "good candidate"?
3.If not, what determines if I am a "good candidate" or not?
4.Are you satisfied with your selection of monovision, and may I ask why?
5.Are you now totally free of spectacles?
Any information you ( or any reader on this forum) can provide me would be greatly appreciated, as I still have plenty of time before making a firm choice.
.
I think I may have answered this before in another post, but in any case...
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1. I see nothing out of the ordinary with your eyeglass prescriptions. You seem to have near perfect distance vision in your left eye with some astigmatism. Right eye needs some help for distance and about the same astigmatism. An add of +2.5 is pretty standard for reading when we get older. This said there is not much you can determine for sure from the eyeglass prescription. The issue is that both your sphere and cylinder for astigmatism is determined by both the shape of your lens and the cornea. You can have some error in each which can add together or subtract to determine your overall correction needed. Since the lens is being totally taken out, the remaining error that needs to be corrected is in the cornea. The error there is determined by the cornea topography measurement. You may or may not need astigmatism correction once your natural lens is out of the picture. The minimum astigmatism that is normally corrected is -0.75 D. I believe it is a good idea to get a toric lens to correct it, if your residual is -0.75 or more.
2. I don't see anything in your eyeglass prescription that would make you a good candidate for monovision. There is nothing that suggests it is not suitable either.
3. What would make you a good candidate for monovision is what you want for an outcome. Do you want to be totally free of glasses for distance and reading? If yes, are you willing to put up with some halos and glare issues especially at night, if you use a multifocal lens? If no, or also if you are not willing to pay the significant premium price for them, then a multifocal is not likely a good choice. Then you are in the monofocus lens zone. Do you still want to be glasses free almost all the time? If yes, then monovision would be the right option. Normally the dominant eye is corrected with the IOL to plano for distance, and the non dominant eye is under corrected to about -1.0 to -1.5 D. The desired outcome is to use the under corrected eye for reading, the plano eye for distance, and a combination of the two for intermediate vision. It is good to test your tolerance for it with contacts though. The other option is to correct both eyes for distance and use reading glasses, or although it is less common, both eyes could be corrected for reading, and then you would need prescription glasses for distance and driving. They are all options, but it kind of depends how much of the time, and when you want to be without glasses. Depending on what your preferences are is what would make you a good candidate (or not) for monovision.
4. I was scheduled for the first eye in August, but now with COVID-19, who knows when I will be done. My plan was to get the first eye done for plano distance, and then depending on how it turned out then consider monovision, probably with a -1.25 under correction in the second eye. I will test that with contacts to see what I like and can tolerate. My fear now is that my surgery will be delayed for so long that I will not have good enough vision left in my better eye to evaluate it. My bad eye now is too bad to evaluate monovision with contacts.
5. I am not expecting to be totally free of glasses. When I tried monovision with a -1.25 under correction in one eye, I did need reading glasses for fine print. I expect it would be the same with IOL monovision. My plan B if I do not get quite what I like or have some residual spherical or cylindrical error is to just get progressive prescription glasses to give me the very best vision for both distance and reading. The issue with glasses of course when you don't always need them, is actually having them with you when you do need them!
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Hope that helps some. Stay safe with that COVID-19 out there. I see that Quebec seems to be suffering the most of all the provinces. I'm worried that the lock down is going to get so strict that they are going to arrest us old guys when we go outside! Take care...
Personally i think that the most important factor for Monovision is weather you can tolerate it or not. Some people hate it - they simply can't stand the difference. So try to figure out with contacts or by other means where you stand, before the surgery. You may want to go with "Mini - Monovision" in which the dioptr diff between the eyes is smaller. Hope this helps.
For total "eye power" you take the dioptr and add to it half the cylinder: in your case : Right eye : -3.25 - 1.75/2 =~ -4 Left eye: -0.25 - 0.75/2 = ~ -0.5 For the question weather i am satisfied, I am just after my operation, so its too soon to tell.